Title: Amine-appended metal-organic frameworks exhibiting a new adsorption mechanism for carbon dioxide separations

Abstract

An adsorption material is disclosed that comprises a metal-organic framework and a plurality of ligands. The metal-organic framework comprising a plurality of metal ions. Each respective ligand in the plurality of ligands is amine appended to a respective metal ion in the plurality of metal ions of the metal-organic framework. Each respective ligand in the plurality of ligands comprises a substituted 1,3-propanediamine. The adsorbent has a CO₂ adsorption capacity of greater than 2.50 mmol/g at 150 mbar CO₂ at 40° C. Moreover, the adsorbent is configured to regenerate at less than 120° C. An example ligand is diamine 2,2-dimethyl-1,3-propanediamine. An example of the metal-organic framework is Mg₂(dobpdc), where dobpdc⁴⁻ is 4,4′-dioxidobiphenyl-3,3′-dicarboxylate. Example applications for the adsorption material are removal of carbon dioxide from flue gas and biogasses.

Inventors:

Long, Jeffrey R.; Milner, Phillip J.; Siegelman, Rebecca L.

Issue Date:

2022-10-04

Research Org.:

Univ. of California, Berkeley, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1986639

Patent Number(s):

11458431

Application Number:

16/481,039

Assignee:

The Regents of the University of California (Oakland, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D2253/204 - Metal organic frameworks
B01D2257/504 - Carbon dioxide
B01D2258/05 - Biogas
B01D2259/4009 - using hot gas
B01D53/02 - by adsorption, e.g. preparative gas chromatography {
B01D53/0462 - {Temperature swing adsorption}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J20/226 - {Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF]
B01J20/28057 - {Surface area, e.g. B.E.T specific surface area}
B01J20/3466 - {with steam}
B01J20/3483 - {by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling}
B01J20/3491 - {by pressure treatment}

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR

C10L2290/12 - Regeneration of a solvent, catalyst, adsorbent or any other component used to treat or prepare a fuel
C10L2290/542 - Adsorption of impurities during preparation or upgrading of a fuel
C10L3/104 - {Carbon dioxide}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E50/30 - Fuel from waste

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

Y02T50/678 - using fuels of non-fossil origin

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DOE Contract Number:  

SC0001015

Resource Type:

Patent

Resource Relation:

Patent File Date: 02/17/2018

Country of Publication:

United States

Language:

English